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Cost Effective Processes for Heating Value Adjustment

IP.com Disclosure Number: IPCOM000217659D
Publication Date: 2012-May-10

Publishing Venue

The IP.com Prior Art Database

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Title: Cost Effective Processes for Heating Value Adjustment in LNG Receiving Terminals
Authors: Joseph Cho, Javier Jorge Vazquez, Heinz Kotzot, Himanshu Patel and Charles Durr

Abstract:

As new markets develop in the LNG industry, one challenge that is becoming more common in the LNG terminal design is to provide gas interchangeability between imported LNG and domestically produced natural gas. Many LNG plants produce heavy LNG or are focused on the higher heating value required for Asian markets rather than that required in the United States and Western Europe. Therefore, some of the LNG imported to these countries requires treatment to meet domestic pipeline specifications.

Discussed in this paper are newly developed and practical heavy hydrocarbon extraction processes used to reduce the heating value of gas in regasification terminals that are targeting LNG from multiple sources. These processes include integrated compressor/expander technology and residual condensing with LNG preheater/condenser, which lowers the capital and operating costs by reducing vapor compression and booster pump pressure in the pressurization process.

This paper presents the performance of the newly developed processes in comparison to those that are now commercially available, including a competing nitrogen dilution process. Technical issues, such as concentration of sulfur in the extracted hydrocarbons and the subsequent de-sulfurization, along with the operability of these processes will also be addressed.


Page 02 of 29

KBR Paper 1958

Cost Effective Processes for Heating Value Adjustment

 Joseph H. Cho, Technology Advisor
J.J. Vazquez- Esparragoza, Principal Technical professional

       Heinz Kotzot
Chief Technology Professional Leader Felix de la Vega
Senior Consultant, LNG and Gas Processing

Charles Durr


Director LNG, GTL and Gas Processing

Kellogg Brown & Root, Inc. Houston, Texas 77002

Page 1 of 17


Page 03 of 29

KBR Paper 1958

ABSTRACT

The increasing markets and resources for the LNG industry provide a challenge in the LNG terminal design for gas interohangeability between imported LNG and domestically produced natural gas.

This paper discusses newly developed and practical heavy hydrocarbon extraction processes to reduce the heating value of send-out gas in regasification terminals that are considering LNG supply from multiple sources. These processes include integrated compressor/expander technology and residue gas condensing with LNG preheater, which lowers the capital and operating costs by reducing vapor compression and booster pump pressure in the pressurization process. Potential applications include new build terminals and revamp of existing terminals.

This paper presents the performance of the newly developed processes by KBR in comparison to those that are now commercially available. Technical issues, such as concentration of sulfur in the extracted hydrocarbons and the subsequent desulphurization along with the operability of these processes a...